Skip to main content
### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### Advanced mathematics

### For younger learners

# Shapely Lines

## You may also like

### Let's Investigate Triangles

Or search by topic

Age 5 to 7

Challenge Level

- Problem
- Getting Started
- Student Solutions
- Teachers' Resources

Here are some photos sent to us by children at Aycliffe Drive Primary School:

Jonathan's picture:

Jonathan's Key:

- Quadrillaterals are blue; I know this because they have 4 sides.
- Right angle triangles are light brown; they have one right angle, 3 sides and 3 angles.
- Scalene triangles are pink; I know this because I went on the computer and found out a scalene triangle has 3 unequal sides and 3 angles.
- Irregular pentagons are black; they have 5 unequal sides and angles.
- Obtuse triangles are green; these are triangles with one obtuse angle.

Other pictures sent into us by Callum and
Chloe at Aycliffe Drive Primary School:

Great use of colours and patterns to
differentiate between triangles, quadrilaterals and
pentagons.

Vincent and Tara are making triangles with the class construction set. They have a pile of strips of different lengths. How many different triangles can they make?